 /*******************************************************************************
  * Copyright (c) 2004, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/

 package org.eclipse.ui.internal.intro.impl.model;

 import org.eclipse.ui.internal.intro.impl.model.util.BundleUtil;
 import org.osgi.framework.Bundle;
 import org.w3c.dom.Element ;

 /**
  * An intro image element.
  */
 public class IntroImage extends AbstractBaseIntroElement {

     protected static final String TAG_IMAGE = "img"; //$NON-NLS-1$

     private static final String ATT_SRC = "src"; //$NON-NLS-1$
 private static final String ATT_ALT = "alt"; //$NON-NLS-1$

     private Element element;
     private String src;
     private String base;

     IntroImage(Element element, Bundle bundle, String base) {
         super(element, bundle);
         this.element = element;
         this.base = base;
     }
  
     /**
      * @return Returns the alt.
      */
     public String getAlt() {
         return getAttribute(element, ATT_ALT);
     }


     /*
      * (non-Javadoc)
      *
      * @see org.eclipse.ui.internal.intro.impl.model.IntroElement#getType()
      */
     public int getType() {
         return AbstractIntroElement.IMAGE;
     }

     /**
      * @return Returns the src value, already resolved as a local url.
      */
     public String getSrc() {
         if (src==null)// Resolve src.
 src = BundleUtil.getResolvedResourceLocation(base, getSrcAsIs(), getBundle());
         return src;
     }

     /**
      * @return Returns the src value, as is, without resolving it as a local
      * url. The src value is relative to the parent plugin.
      */
     public String getSrcAsIs() {
         return getAttribute(element, ATT_SRC);
     }
 }

